Sleep and Teens--Biology and Behavior
How much sleep do teens need? And how much sleep are they realistically getting? Based on current data, most teens need about 9-plus hours to have the best or most suitable sleep night. 1.
Many factors combine to decrease sleep in adolescents. We can think in general of two major factors: biological, the brain processes that regulate the amount and timing of sleep, and behavior, all the psychological, parental, societal, cultural features of teen’s life.
2.These changes lay the ground work for the biological night to occur later during the teen years than before. Circadian Rhythms (daily biological clock) seems to slow down as young people progress through the middle school years. At the same time, the sleep pressure system appears to change in a way that makes it easier to stay awake longer, though without changing the amount of sleep that is needed.
Moreover, many teens have a "technological playground" in their bedrooms: television, computer with 24/7 Internet access, telephones, electronic game stations, MP3 players, and so forth. These technologies provide instant and constant contact with peers. Societal and media pressure to consume these technologies is now higher than ever. Yet society also requires that teens go to school at a time of day that is at odds with their biological and social lives. So we see teens turn to caffeine, late-night Internet and cramming in activity after activity as a means to keep awake. 3.
Problems emerge for lack of sleep. 4.For some, grades begin to suffer as they struggle to keep awake during class and while doing homework. And others may simply feel moody, never knowing how to feel or do their best. Worse still, many teens suffer from both physical and mental illness.
5.The earlier teens can start this good sleep habit, the easier it will be for them to stay healthy, happy and smart.
A. Sleep experts recommend teens keep consistent sleep and wake schedule.
B. Teens may schedule sleep like any other daily activity and make sleep a priority.
C. Then they are trapped into a terrible situation where they would never get enough sleep.
D. The sleep-wake bio-regulatory factors appear to change significantly during adolescence.
E. Some teenagers struggle to wake up in the morning, often resulting in late or missed school.
F. Teens may be driven to things that can wake them up because they'll fall asleep if they do not.
G. However, it is indicated that most teens fall short of this goal, many by a considerable amount.
Science is finally beginning to embrace animals who were, for a long time, considered second-class citizens.
As Annie Potts of Canterbury University has noted, chickens distinguish among one hundred chicken faces and recognize familiar individuals even after months of separation. When given problems to solve, they reason: hens trained to pick colored buttons sometimes choose to give up an immediate food reward for a slightly later (and better) one. Healthy hens may aid friends, and mourn when those friend die.
Pigs respond meaningful to human symbols. When a research team led by Candace Croney at Penn State University carried wooden blocks marked with X and O symbols around pigs, only the O carriers offered food to the animals. The pigs soon ignored the X carriers in favor of the O’s. Then the team switched from real-life objects to T-shirts printed with X or O symbols. Still, the pigs walked only toward the O-shirted people: they had transferred their knowledge to a two-dimensional format, a not inconsiderable feat of reasoning.
I’ve been guilty of prejudiced expectations, myself. At the start of my career almost four decades ago, I was firmly convinced that monkeys and apes out-think and out-feel other animals. They’re other primates(灵长目动物), after all, animals from our own mammalian(灵长目动物) class. Fairly soon, I came to see that along with our closest living relatives, whales too are masters of cultural learning. and elephants express profound joy and mourning with their social companions. Long-term studies in the wild on these mammals helped to fuel a viewpoint shift in our society: the public no longer so easily accepts monkeys made to undergo painful procedure in laboratories, elephants forced to perform in circuses, and dolphins kept in small tanks at theme parks.
Over time, though, as I began to broaden out even further and explore the inner lives of fish, chickens, pigs, goats, and cows, 1 started to wonder: Will the new science of "food animals" bring an ethical (伦理的) revolution in terms of who we eat? In other words, will our ethics start to catch up with the development of our science?
Animal activists are already there, of course, committed to not eating these animals. But what about the rest of us? Can paying attention to the thinking and feeling of these animals lead us to make changes in who we eat?
1.According to Annie Potts, hens have the ability of .
A. interaction
B. analysis
C. creation
D. abstraction
2.The research into pigs shows that pigs .
A. learn letters quickly
B. have a good eyesight
C. can build up a good relationship
D. can apply knowledge to new situations
3.Paragraph 4 is mainly about .
A. the similarities between mammals and humans
B. the necessity of long-term studies on mammals
C. a change in people’s attitudes towards animals
D. a discovery of how animals express themselves
4.What might be the best title for the passage?
A. The Inner Lives of Food Animals
B. The Lifestyles of Food Animals
C. Science Reports on Food Animals
D. A Revolution in Food Animals
Norman Garmezy, a development psychologist at the University of Minnesota, met thousands of children in his four decades of research. A nine-year-old boy in particular stuck with him. He has an alcoholic mother and an absent father. But each day he would walk in to school with a smile on his face. He wanted to make sure that “no one would feel pity for him and no one would know his mother’s incompetence.” The boy exhibited a quality Garmezy identified as “resilience”.
Resilience presents a challenge for psychologists. People who are lucky enough to never experience any sort of adversity (逆境) won't know how resilient they are. It's only when they're faced with obstacles, stress, and other environmental threats that resilience, or the lack of it, comes out. Some give in and some conquer.
Garmezy's work opened the door to the study of the elements that could enable an individual’s success despite the challenges they faced. His research indicated that some elements had to do with luck, but quite large set of elements was psychological, and had to do with how the children responded to the environment. The resilient children had what psychologists call an “internal lens of control(内控点)”. They believed that they, and not their circumstances, affected their achievements. The resilient children saw themselves as the arrangers of their own fates.
Ceorge Bonanno has been studying resilience for years at Columbia University's Teachers College. He found that some people are far better than others at dealing with adversity. This difference might come from perception(认知) whether they think of an event as traumatic(创伤), or as an opportunity to learn and grow. “Stressful” or “traumatic” events themselves don't have much predictive power when it comes to life outcomes. "Exposure to potentially traumatic events does not predict later functioning,” Bonanno said. "It's only predictive if there's a negative response.” In other words, living through adversity doesn't guarantee that you'll suffer going forward.
The good news is that positive perception can be taught. "We can make ourselves more or less easily hurt by how we think about things," Bonanno said. In research at Columbia, the neuroscientist Kevin Ochsner has shown that teaching people to think of adversity in different ways—to reframe it in positive terms when the initial response is negative, or in a less emotional way when the initial response is emotionally “hot”—changes how they experience and react to the adversity.
1.According to the passage, resilience is an individual's ability________.
A. to think critically B. to decide one’s own fate
C. to live a better life D. to recover from adversity
2.What does the underlined word “they” in Paragraph 3 refer to?
A. The psychologists B. The resilient children
C. Positive elements D. Internal locus of control
3.According to Paragraph 4, we can learn that____________.
A. your positive perception may turn adversity around
B. stressful events are more predictive than delightful events
C. experiencing adversity predicts that you will go on suffering
D. a negative response doesn't guarantee you will suffer all the time
4.What is the author's purpose of writing this passage?
A. To teach people how to be resilient.
B. To encourage people to live through adversity.
C. To indicate people’s perception varies from each other.
D. To compare different research findings about resilience.
Why do you go to the library? For books, yes--but you like books because they tell stories. You hope to get lost in a story or be transported into someone else's life. At one type of library, you can do just that--even though there's not a single book.
At a Human Library, instead of books, you can “borrow” people. Individuals volunteer as human “books” and participants in the event can “read” the book--meaning they would have a one-on-one conversation with the volunteer and share in a dialogue about that individual’s experience. “Books” are volunteers from all walks of life who have experienced discrimination (歧视) based on race, religion, class, gender identity, age, lifestyle choices, disability and other aspects of their life.
For a certain amount of time, you can ask them questions and listen to their stories, which are as fascinating and as attractive as any you can find in a book. Many of the stories have to do with some kind of stereotype. You can speak with a refugee (难民), a soldier suffering from PTSD, a homeless person or a woman living with HIV. The Human Library encourages people to challenge their own long-held beliefs—to truly get to know, and learn from someone they might otherwise make a quick judgment about.
According to its website, the Human Library is “a place where difficult questions are expected, appreciated and answered.” It provides the opportunity for the community to share and understand the experiences of others in their community.
The Human Library Organization came to be in Copenhagen, Denmark in 2000. Ronni Abergel, his brother Dany, and some colleagues hosted a four-day event during a major Northern European festival, hoping to raise awareness about violence among youth. After the success of this event, Abergel founded the Human Library Organization, which has been growing ever since.
Though there are a few permanent human libraries, most aren’t places at all, but events. Though many do take place at physical libraries, you don’t need a library card—anyone can come and be part of the experience. There have been human library events all over the globe, in universities and in pubs, from Chicago to Tunis to Edinburgh to San Antonio.
The stories these "books" tell range from fascinating to heartbreaking and everything in between. And that's the very point of the organization—to prove that no person can be summed up in just one word. It seeks to show people that you truly can't judge a book by its cover---or by its title or label.
1.The “books” in human libraries are ________.
A. long-held beliefs attracting individuals
B. inspiring stones motivating people in trouble
C. events in which people can talk to volunteers
D. unfairly-treated people sharing their experiences
2.The event in Copenhagen is significant because it ________.
A. aimed to help the young suffering from violence
B. attempted to replace traditional physical libraries
C. laid a foundation for the Human Library Organization
D. led to a pleasing development for the community with racism
3.In human libraries, the readers are likely to ________.
A. deepen their understanding of people
B. enrich their own personal experiences
C. hear the stories from all over the world
D. make quick judgments about the “books”
4.The main purpose of the passage is to ________.
A. compare and evaluate B. inform and explain
C. discuss and persuade D. analyze and suggest
My First Day of School
Fear started taking over, I was walking into my first school in America. I had traveled a long distance from India in order to join my parents, who had been for three years, hoping America would help my future. My father decided that I would be better off going to school here, so I enrolled(登记) in the local high school in my new town.
I was afraid how I would do. On the first day, I went to my second period class after I had missed my first. With anxiety, I reached for the door, opening it slowly. Without paying attention to my classmates, I went straight to the teacher and asked if this was the right class. With a soft voice he answered. “Yes.” His voice comforted me a little. He gave me a sheet called Course Requirements, which I would never get in India because we didn’t have anything like that. Then he asked me to choose where I would sit. I didn’t actually want to pick a seat. In India we had fixed seats, so I never needed to worry about that. I spent the rest of the class taking notes from the image produced by the overhead projector. In Indian schools, we didn’t use the technology we had. We had to take notes as the teacher spoke.
It was noon. I was very confused about when I would have lunch. I went to my next class and the bell rang as I entered. I went through the regular process of asking the teacher if I was in the right class. She said, “It’s still fourth period.”
“But the bell just rang,” I said.
Changing from a gentle tone to a harsher(刺耳的)one, she said, “That is the lunch bell, young man.”
I apologized. Without another word I headed for the cafeteria. I felt lucky because we didn’t have this in India. Every confusion seemed like a barrier I had to get through to reach my goal. At the end of the day, I was on my way to the bus which we didn’t have in India either. I spotted my bus and sat down inside happily. I was thinking, today wasn’t so bad.
1.The author attended an American high school because _______.
A. his father preferred American schools
B. his family wanted him to have a bright future
C. his mother had worked in it for 3 years
D. he had been longing to leave his homeland
2.What do we know about the author’s first day of school?
A. He went to the wrong class for the second period.
B. He met some enthusiastic teachers and classmates.
C. He got the Course Requirements sheet from his classmate.
D. He experienced differences from the Indian schools in many ways.
3.How did the author feel at the end of the day?
A. Worried. B. Puzzled.
C. Relieved. D. Excited.
Double Trouble
When I was eight, I wanted a toy and needed $10 to buy it. But, as usual, I was broken. I decided to ask my 11-year-old sister, Kathleen, for a loan. I went to her room, _______her for the cash. Laughing, she agreed to_______ me the money, but added, “I will charge you 10 percent compound interest every _______until you pay me back.”
“Compound interest—what’s that?” I asked.
“Well, interest is what you call the_______money borrowers have to pay back on a loan,” she explained. “Compound interest means that the interest payments get bigger and bigger the_______you take to pay back the loan. To repay the loan, you will need to give me $11 after one month. If you wait two months to pay me back, your_______ will grow from $10 to $11. So I’ll be charging you interest on $11. Then I will add that interest to the $11 you already owe me, for a _______of $12.10. That’s what you’ll owe after two months.”
“Sure. I get it,” I said. Though truthfully, I was getting _______.
Kathleen lent me the money, and I bought the toy. My birthday came a month later, and my mom gave me $10. _______, that was just the amount I needed to buy another toy I wanted ________. I put off paying my sister for a month. After another month, I________about the loan.
Several months later, on Christmas morning, my sister and I each found a $20 bill in our stockings. I was just putting it into my pocket ________Kathleen tapped me on the shoulder.
“Sorry, kiddo. That’s mine. I’m ________on your debt.”
“Huh?” Then I remembered the loan. “Hey! How can it be that much? I ________borrowed $10.”
“True,” she said, “but interest has been compounding for eight months. Now you ________me $21.43.” She paused, then added. “You can pay me the $1.43.”
I ________to believe that a $10 loan could more than double so quickly. Much to my ________, my sister got her pencil and tablet and showed me exactly how it all added up.
My head ________as I tried to keep track of Kathleen’s ________, but this time, I got the basic idea of compound interest. I ________the hard way that borrowing money can be “double trouble” in no time.
1.A. blaming B. begging C. searching D. preparing
2.A. pay B. send C. lend D. hand
3.A. month B. year C. week D. day
4.A. little B. same C. enough D. extra
5.A. shorter B. longer C. more D. less
6.A. cash B. saving C. note D. debt
7.A. total B. cost C. number D. bill
8.A. encouraged B. shocked C. confused D. satisfied
9.A. Gradually B. Obviously C. Unfortunately D. Hopefully
10.A. seriously B. anxiously C. secretly D. desperately
11.A. forgot B. knew C. talked D. cared
12.A. after B. until C. while D. when
13.A. carrying B. collecting C. relying D. focusing
14.A. normally B. nearly C. only D. really
15.A. owe B. offer C. take D. give
16.A. decided B. refused C. pretended D. managed
17.A. relief B. delight C. annoyance D. regret
18.A. turned B. nodded C. stuck D. hurt
19.A. calculations B. excuses C. directions D. discoveries
20.A. explored B. learned C. explained D. questioned
